include vdmad.inc mov eax, DMA_Handle mov ebx, VMHandle VxDcall VDMAD_Disable_Translation jc ErrorHandler
Disables the automatic translation done for the standard DMA channels. Uses flags
DMA_Handle
Handle of the DMA.
VMHandle
Handle of the VM.
If a V86 application, a driver, or a protected-mode application uses the DMA services through INT 4B, it must determine actual physical addresses for DMA transfers.
A disable count is maintained, so a matching call to VDMAD_Enable_Translation is required for each call to this service to re-enable translation.